On the nature of two superconducting transitions in the specific heat of PrOs${}_4$Sb${}_{12}$: Effects of crystal grinding

M. E. McBriarty, P. Kumar, G. R. Stewart +1

Specific heat, dc- and ac-magnetic susceptibility are reported for a large single crystal of PrOs${}_4$Sb${}_{12}$ and, after grinding, its powder. The room temperature effective param…